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author | yokota <yokota@FreeBSD.org> | 1999-02-10 14:25:03 +0000 |
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committer | yokota <yokota@FreeBSD.org> | 1999-02-10 14:25:03 +0000 |
commit | 8d9b8047a3f4381cb28d8751cef0c3d36b4db86c (patch) | |
tree | 4b03f0b8fdf0b43b7adeb3ac843a40eabacf80d2 /share/man/man4/vga.4 | |
parent | b897dbf5fefd31449773c0bf237f97f7605ea816 (diff) | |
download | FreeBSD-src-8d9b8047a3f4381cb28d8751cef0c3d36b4db86c.zip FreeBSD-src-8d9b8047a3f4381cb28d8751cef0c3d36b4db86c.tar.gz |
- Revise text, and fix typos and grammatical errors.
- Add syscons.4.
If there still are errors, whether technical or grammatical, they are
entirely mine, not the reviewers'.
Reviewed by: sos, jkh, archie, Nick Hilliard <nick@iol.ie>
Diffstat (limited to 'share/man/man4/vga.4')
-rw-r--r-- | share/man/man4/vga.4 | 59 |
1 files changed, 32 insertions, 27 deletions
diff --git a/share/man/man4/vga.4 b/share/man/man4/vga.4 index a2d30c2..a14ff5d 100644 --- a/share/man/man4/vga.4 +++ b/share/man/man4/vga.4 @@ -24,10 +24,10 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $Id: $ +.\" $Id: vga.4,v 1.1 1999/02/07 05:40:14 yokota Exp $ .\" -.Dd February 6, 1999 -.Dt VGA 4 i386 +.Dd February 9, 1999 +.Dt VGA 4 .Os FreeBSD .Sh NAME .Nm vga @@ -52,41 +52,43 @@ The console driver will call the .Nm driver to manipulate video hardware (changing video modes, loading font, etc). .Pp +The keyword +.Em conflicts +is required, as the video card may use I/O ports in the same range +as other drivers. +.Pp The .Nm -driver supports the standard video cards: MDA, CGA, EGA and VGA. -In addition, the driver can utilize the VESA BIOS extension, -if the video card has one. -VESA support can either be statically included in the kernel or -available as a separate module. +driver supports the standard video cards: MDA, CGA, EGA and VGA. In +addition, the driver can utilize VESA BIOS extensions if the video card +supports them. VESA support can either be statically included in the kernel +or can be loaded as a separate module. .Pp -In order to statically link the support to the kernel, define the +In order to statically link the support to the kernel, the .Em VESA option (see below) and the .Em VM86 -option in the kernel configuration file. +option must be defined in the kernel configuration file. .Pp The .Nm vesa -module can be loaded to the kernel, without static VESA support, by +module can be dynamically loaded into the kernel using .Xr kldload 8 . -The +This requires the .Em VM86 -option is required in the kernel configuration file in this case too. +option to be defined in the kernel configuration file. .Sh DRIVER CONFIGURATION .Ss Kernel Configuration Options -The following kernel configuration options control the +The following kernel configuration options +.Pq see Xr config 8 +can be used to control the .Nm driver. -They may be set in the kernel configuration file -.Pq see Xr config 8 . -.Pp -The following options are to provide compatibility with certain VGA -cards. +These options provide compatibility with certain VGA cards. .Bl -tag -width MOUSE .It Em VGA_ALT_SEQACCESS You may want to try this option if the mouse pointer is not drawn correctly -or font does not seem to be loaded properly on the VGA card. +or the font does not seem to be loaded properly on the VGA card. However, it may cause flicker on some systems. .It Em VGA_SLOW_IOACCESS Older VGA cards may require this option for proper operation. @@ -105,8 +107,9 @@ This option requires the .Em VM86 option. .It Em VESA_DEBUG=N -Set the VESA support debug level to N. -The default value is zero (all debugging output is suppressed). +Set the VESA support debug level to +.Fa N . +The default value is zero, which suppresses all debugging output. .El .Pp The following options will remove some features from the @@ -119,7 +122,7 @@ The driver can load software font to EGA and VGA cards. This option removes this feature. .It Em VGA_NO_MODE_CHANGE -This option disallows the driver to change video modes. +This option prevents the driver from changing video modes. .El .\".Sh FILES .Sh EXAMPLE @@ -134,16 +137,16 @@ in order to enable the VESA BIOS Extension support. .Dl "options" \&"VESA\&" .Dl "device vga0 at isa? port ? conflicts" .Pp -If you do not want the VESA support always included in the kernel, but +If you do not want VESA support included in the kernel, but want to use occasionally, add the following lines to the kernel configuration -file. +file: .Pp .Dl "options" \&"VM86\&" .Dl "device vga0 at isa? port ? conflicts" .Pp -And load the +Then load the .Nm vesa -module, when desired, as follows. +module as desired: .Pp .Dl kldload vesa .Pp @@ -151,6 +154,8 @@ module, when desired, as follows. .\".Sh CAVEATS .\".Sh BUGS .Sh SEE ALSO +.Xr syscons 4 , +.Xr config 8 , .Xr kldload 8 , .Xr kldunload 8 . .Sh STANDARD |